Corner brace for window screens



S. BRENDZA.

CORNER BRACE FOR wmoow SCREENS. APPLICATION FILED SEPT. 4 1920.

1,419,608. I PatentedJuneB, 1922.

i; rare.

STEVEN BRENDZA, 0F CLEVELAND, OHIO.

CORNER BRACE FOR WINDOW SCREENS.

Specification of Letters Patent. Patented June 13, 1922.

Original application filed November 15, 1919, Serial No. 338,306. Divided and this application filed September 4, 1920. Serial No. 408,179.

To all whom it may concern:

Be it known that I, STEVEN BRENDZA, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented a certain new and useful Improvement in Corner Braces for Window Screens, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings.

This invention relates generally to window screens and more particularly to a novel form of corner brace for such screens, this application being a divisional portion of my application filed November 15, 1919, Serial No. 338,306. At the present time, so far as I am aware, corner braces have been mace either of cast or pressed metal and have been made of definite size, that is, they have been made to receive or combine only strips of definite dimensions. The object of my invention is to provide a sheet metal corner brace which can be employed to unite vertical and horizontal strips either of the same or different dimensions. Other objects will appear as the description proceeds.

With these various objects in view, my invention consists in the novel features of construction hereinafter fully described and pointed out in the claim.

In the drawings forming a part of this specification, Fig. 1 is a perspective view illustrating the practical application of my improved construction of brace; Fig. 2 is a detailed perspective view of the brace disconnected froin the frame members and Fig. 3 is a plan view of the blank of the brace before being folded. In the practical embodiment of my invention I employ a corner brace comprising two L-shaped plates A connected by a substantially rectangular shaped portion B, parallel side plates A and the connecting portion B being punched from a single piece of sheet metal as most clearly shown in Fig. 3, the blank from which the brace is made being substantially in the shape of a square which is split from the outer corners inwardly along the diagonal line C for a definite distance and then along the divergent lines D for definite distances, leaving a central connecting portion. In practice I prefer to cut out a portion at each corner as indicated at E although this is not necessary but it eliminates a sharp corner at the outer edges of the brace. After the blank has been punched along the lines indicated it is folded upon the parallel lines F thereby bringing the two L-shaped portions into parallel relation and the winged portions of the central member are bent at substantially right angles to each other so as to contact with the adjacent faces of the vertical and horizontal wooden strips G and II respectively, which constitute members of the screen frame, said wooden strips be ing placed between the parallel plates A and the connecting portion B being arranged at the juncture of these horizontal and vertical strips. When the winged portions of the connecting member B are brought into contact with the wooden strips, portions of said wings can be forced into the wood by means of a suitable punch or, if desired, holes can be punched and small nails or screws insorted and in practice I prefer to punch small holes along the edges of'the L-shaped members A and through which nails or screws can be driven into the wooden strips for the purpose of securely and firmly connecting the frame members together through the medium of the connecting corner brace constructed and arranged as hereinbefore described.

It will thus be seen that I offer a novel construction of corner brace punched from a single sheet of metal without any waste whatever and which is capable of use in connection with strips of different dimensions.

Having thus described my invention, what I claim is:

A sheet metal cornerbrace formed from a substantially rectangular sheet of metal split inwardly definite distances from diagonally opposite corners and then along divergent oblique lines fordefinite distances, leaving a central portion of the plate unsevered and presenting oppositely extending wings, said plate being folded along parallel lines constituting the opposite edges of the unsevered portion, said central portion being also folded, along parallel lines, bringing the wings thereof at right angles to each other.

In testimony whereof, I hereunto affix my signature.

STEVEN BRENDZA. 

